How does the meteorological station forecast the weather? How accurate is it?

Meteorological forecast needs a lot of data, including local historical meteorological data, real-time data downloaded from meteorological satellites, data on the pressure, radiation, temperature, wind and humidity observed by observers at different altitude fields after the high-altitude observers released the ball, and various meteorological data recovered by the more advanced new generation Doppler weather radar. After all these materials and data are integrated, they are analyzed and processed by some forecasting methods, and finally the forecast is obtained. With the improvement of modern science and technology, the data is more comprehensive and the accuracy rate can reach 890%. Hope to adopt. Thank you.